I seem to have a problem with the Idle Air Intake on my 1999 Ford Taurus. It's been having a hard time starting in the mornings. I thought it might be bad gas. I had filled the car up with cheap walmart gas late one night when nothing else was open. (Read the "I was carded" thread on Homesteading Questions.) I bought some STP gas treatment and it didn't do the trick. The check engine light has come on a couple of times. It almost immediately goes back off. I had it checked at the auto parts store and their computer said I have an Idle Air Intake problem. I thought it was something simple that maybe I could clean or replace. I'm not very mechanically inclined and usually leave everything to a mechanic. The guy at the parts store said there was nothing I could do and that I would have to take the car to a Ford Dealer to have them order the part I need and that they would replace it. He said it would cost me at least $500 to have them order it and replace it. It always starts but it chugs for a while. It sounds like the lawn mower did when my wife put too much oil in it and I had to clean it out and change the spark plug and air filter. If I try to change gears while it's chugging, it goes dead. If I hold the accelerator above 2,000 rpm for several seconds everything is fine. It's just a hassle. Normally, it idles at about 1,000 rpm but while it's chugging it's down below 500. What's going on and can I fix it?